Htmlunit获取没有id和name的按钮,提交表单

登录通常都是用form表单提交

<form id="fm1" class="fm-v clearfix" action="/xxx/xxx?service=http%3A%2F%2F106.14.119.242%3A8088%2Fwms%2F" method="post">
		<input id="username" type="text" name="username" class="inputCls" >
		<input type="text" name="password" class="inputCls" id="password">
		<input type="submit" class="submitCls" value="登录">
</form>

	获取form表单
	HtmlForm form = home.getForms().get(0);
    // 点击登录获取页面
     DomElement loginBut = form.getInputByValue("登录");
     loginBut.click();